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Ilex altaclerensis, photographed by an iNaturalist contributor
(c) Michel Langeveld, some rights reserved (CC BY), uploaded by Michel Langeveld · CC BY
#1527 most planted

Ilex altaclerensis

Highclere holly · also Wilson holly

BroadleafEvergreen
34
trees mapped
0.00%
of all named trees
2
cities
14 in
median trunk (36 cm, 19 measured)
57 yr
median age (56% have a planting date)

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Ilex altaclerensis, known as Highclere holly, is an evergreen hybrid tree or large shrub featuring glossy, spiny leaves and vibrant red berries. It is a hardy ornamental plant that provides food for birds and insects, thriving in well-drained, loamy soils with moderate water and drought tolerance. Although widely cultivated, its foliage is highly flammable, posing a notable fire risk in urban landscapes.

Where it grows

Trees in each city's inventory, with the share of that city's named trees this species accounts for.

  1. Amsterdam · Netherlands
    2057 yr16 in
  2. Vancouver · Canada
    14—14 in

Traits

Form
Broadleaf
Foliage
Evergreen
Mature height
15–25 ft
Canopy spread
15–25 ft
Growth rate
Moderate
Soil
Well-drained, Loamy
Water needs
Moderate
Drought tolerance
Moderate
Wildlife value
High
Fire risk
High
Blooms
May

Trunk diameters across every city: median 14 in, mean 13 in, 90th percentile 16 in. Measured at breast height, as published by each inventory.

Other Ilex in the catalogue

17 of the top 2,000 species are in this genus.

Interested in talking trees? arborary.world@gmail.comTree data © the respective municipal publishers and © OpenStreetMap contributors (ODbL).